Clayco
Greg Ratzlaff is an experienced construction management professional with a career spanning over three decades. Currently serving as a Senior Preconstruction Manager at Clayco since March 2025, Greg previously held the position of Senior Estimator at DPR Construction from March 2019 to March 2025. Prior to that role, Greg worked as a Senior Cost Manager at Cumming Corporation from 2006 until March 2025 and began professional endeavors as an Estimator at Actus Lend Lease from 1994 to 2004. Educationally, Greg earned a Bachelor of Science degree in Construction Management from California State University, Chico between 1990 and 1993.
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Clayco
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Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $3.2 billion in revenue for 2019, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for industrial, commercial, institutional and residential related building projects.